En route to his first ATP Tour semifinal, Harrison, now No. 94, beat fourth-seeded Xavier Malisse of Belgium in the second round, and then held his nerve to beat fellow American Rajeev Ram 4-6, 6-1, 7-6 (5) in the quarterfinal.

Italy’s Filippo Volandri leaped 16 spots to No. 72 after he won a challenger in Orbatello, Italy, Rui Machado of Portugal went up 11 spots to No. 85 after he won a challenger in Poland, and Gilles Muller jumped 11 spots to No. 71 after he made the semifinals in Atlanta.

Meanwhile, despite losing in the finals in Atlanta for the second year in a row, Isner’s ranking went up two spots to No. 33. Fish, who defended his title, saw no change in his ranking.